CN107509147A - A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve - Google Patents
A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve Download PDFInfo
- Publication number
- CN107509147A CN107509147A CN201710857148.0A CN201710857148A CN107509147A CN 107509147 A CN107509147 A CN 107509147A CN 201710857148 A CN201710857148 A CN 201710857148A CN 107509147 A CN107509147 A CN 107509147A
- Authority
- CN
- China
- Prior art keywords
- ring body
- voice coil
- conducting sleeve
- circuited conducting
- loudspeaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 134
- 229910052742 iron Inorganic materials 0.000 claims abstract description 74
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 238000005452 bending Methods 0.000 claims description 16
- 230000000630 rising effect Effects 0.000 description 7
- 230000006641 stabilisation Effects 0.000 description 7
- 238000011105 stabilization Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/021—Reduction of eddy currents in the magnetic circuit of electrodynamic loudspeaker transducer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/043—Short circuited voice coils driven by induction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/045—Mounting
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides a kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, magnetic circuit system includes T-shaped iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, wherein the U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body again, voice coil loudspeaker voice coil is located in the U-lag that the first ring body is formed with the second ring body, and voice coil loudspeaker voice coil can move up and down in U-lag.Short-circuited conducting sleeve is fabricated to U-shaped structure by the present invention, and by optimizing short-circuited conducting sleeve and the miscellaneous part such as annexation of washer, magnet steel and T iron, harmonic distortion and the non-linear distortion of loudspeaker are effectively reduced, improves the overall acoustical behavior of loudspeaker, improves the tonequality of loudspeaker.
Description
Technical field
The present invention relates to the technical field of loudspeaker manufacture, more particularly, to a kind of loudspeaker magnetic with U-shaped short-circuited conducting sleeve
Road system.
Background technology
Loudspeaker in the course of the work, while external drive electric current driving voice coil loudspeaker voice coil vibrates in magnetic gap, can also cause phase
The induced-current of opposite direction, especially in high frequency, the self-induction of voice coil loudspeaker voice coil itself is excessive, and caused induced-current is larger, to loudspeaker
Work has an impact, and causes higher frequency response impaired.
The loudspeaker of traditional structure, one short-circuited conducting sleeve is set in washer lower end, around magnet, to slow down the resistance of loudspeaker
The anti-rate of climb being worth with frequency.Short-circuited conducting sleeve can offset influence of the voice coil loudspeaker voice coil induced-current to magnetic field in loudspeaker, and attenuating is raised one's voice
The impedance of device high band, play a part of reducing harmonic distortion, reduce voice coil loudspeaker voice coil inductance.
In existing structure design, short-circuited conducting sleeve is generally positioned at the inner side of voice coil loudspeaker voice coil, and is linked on T iron or washer;Or
Person is arranged at the inner side of magnet steel or U iron while positioned at the outside of voice coil loudspeaker voice coil;Or the combined use of both the above mode.But upper
In the short-circuited conducting sleeve application stated, the movement post caloric value of T iron is big, the magnetic field stability being unfavorable in speaker operation engineering, and
It is not still fairly obvious for the improvement of harmonic distortion of loudspeaker and non-linear distortion.
Therefore, it is necessary to be improved design to the existing magnetic circuit of loudspeaker, so as to effectively reduce harmonic distortion, carry
The overall acoustical behavior of high loudspeaker.And how to be effectively improved harmonic distortion of loudspeaker and non-linear distortion be also this area skill
Art personnel need the technical problem solved.
The content of the invention
In order to solve above mentioned problem existing for prior art, the invention provides a kind of loudspeaker with U-shaped short-circuited conducting sleeve
Magnetic circuit system, short-circuited conducting sleeve is fabricated to U-shaped structure, and by optimizing short-circuited conducting sleeve and miscellaneous part such as washer, magnet steel and T iron
Annexation, harmonic distortion and the non-linear distortion of loudspeaker are effectively reduced, improve the overall acoustical behavior of loudspeaker, improvement is raised
The tonequality of sound device.
To achieve the above object, the invention provides following technical scheme:
A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, including T-shaped iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, institute
Stating T-shaped iron includes transverse part and is vertically set on the vertical part of the transverse part overcentre, and the magnet steel and washer are located at the upper of transverse part
Side, the inner side edge of the washer than magnet steel inner side edge closer to vertical part;Formed between the magnet steel and washer and vertical part between T iron
Slot, voice coil loudspeaker voice coil and the U-shaped short-circuited conducting sleeve are located in T iron clearance groove;The U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body,
The voice coil loudspeaker voice coil is located in the U-lag that the first ring body is formed with the second ring body, and the voice coil loudspeaker voice coil can move up and down in U-lag;It is described
First ring body is socketed on vertical part, and second ring body is socketed on magnet steel or washer.
U-shaped short-circuited conducting sleeve is the short-circuited conducting sleeve that section is U-shaped, can also pass through the side such as glue, welding by being integrally formed
Formula connects to form U-shaped structure.U-shaped short-circuited conducting sleeve includes being socketed on the first ring body of T iron vertical part and is socketed on washer or magnet steel
Second ring body, the first ring body and the second ring body form U-lag, and voice coil loudspeaker voice coil is arranged in the U-lag of the short-circuited conducting sleeve, keep inside and outside
Gap, after electric signal is passed through, voice coil loudspeaker voice coil moves up and down in U-lag.It was discovered by researchers that the U-shaped short-circuited conducting sleeve of the structure can have
Effect reduces the inductance of voice coil loudspeaker voice coil, improves the frequency response of loudspeaker, improves the distortion of loudspeaker, ensures the overall acoustics of loudspeaker
Energy.
As further describing for technical scheme, the bottom of the U-shaped short-circuited conducting sleeve be located at the transverse part of T-shaped iron with
The intersection of vertical part.U-shaped short-circuited conducting sleeve is brought into close contact with T-shaped iron, reduces the influence to magnetic gap space, makes magnetic circuit system stable.
As a kind of perferred technical scheme, first ring body carries out downwards U-shaped bending in end, is socketed on afterwards perpendicular
The upper end in portion;Second ring body carries out downwards U-shaped bending in end, is socketed on the upper end of washer afterwards.
As another preferable technical scheme, first ring body carries out downwards U-shaped bending in end, is socketed on afterwards
The upper end of vertical part;Second ring body is socketed on the lower end of washer.
As another preferable technical scheme, the vertical part up forms raised, the first ring body set laterally
It is connected to the lower end of projection;Second ring body is socketed on the lower end of washer.
In above-mentioned technical proposal, the first ring body and the second ring body using different attachment structures respectively with T iron vertical part, washer
It is socketed, can realizes that annexation of the short-circuited conducting sleeve in magnetic circuit system is set well, the harmonic wave for effectively reducing loudspeaker loses
True and non-linear distortion, improve the tonequality of loudspeaker.Because the position of short-circuited conducting sleeve is fixed, ensure the magnetic in speaker operation engineering
Field stability.
Present invention also offers another technical solution:A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, including U
Shape iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, the U-iron include bottom and the convex portion for extending upwardly from the bottom portion out, institute
State magnet steel and washer is located at the top of bottom, the width of the washer is more than the width of magnet steel;The magnet steel and washer and convex portion
Between form U iron clearance grooves, voice coil loudspeaker voice coil and the U-shaped short-circuited conducting sleeve is located in U iron clearance grooves;
The U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body, and the voice coil loudspeaker voice coil is located at the U that the first ring body is formed with the second ring body
In shape groove, the voice coil loudspeaker voice coil can move up and down in U-lag;First ring body is socketed on magnet steel or washer, second ring
Body is socketed on convex portion.
It is similar to the magnetic circuit system of T-shaped iron construction, U-shaped short-circuited conducting sleeve include be socketed on magnet steel or washer the first ring body and
The second ring body of U-iron convex portion is socketed on, the first ring body and the second ring body form U-lag, and voice coil loudspeaker voice coil is arranged at the U of the short-circuited conducting sleeve
In shape groove, inside and outside gap is kept, after electric signal is passed through, voice coil loudspeaker voice coil moves up and down in U-lag.The magnetic circuit of the U-iron structure
In system, U-shaped short-circuited conducting sleeve also can effectively reduce the inductance of voice coil loudspeaker voice coil, improve the frequency response of loudspeaker, improve the distortion of loudspeaker,
Ensure the overall acoustical behavior of loudspeaker.
As further describing for technical scheme, the bottom of the U-shaped short-circuited conducting sleeve be located at the bottom of U-iron with
The intersection of convex portion.U-shaped short-circuited conducting sleeve is brought into close contact with U-iron, reduces the influence to magnetic gap space, magnetic circuit system is obtained surely
It is fixed.
As a kind of perferred technical scheme, first ring body carries out downwards U-shaped bending in end, is socketed on China afterwards
The upper end of department;Second ring body carries out downwards U-shaped bending in end, is socketed on the upper end of convex portion afterwards.
As another preferable technical scheme, the convex portion up convexes to form projection, second ring body inward
It is socketed on the lower end of projection;First ring body carries out downwards U-shaped bending in end, is socketed on the upper end of washer afterwards.
As another preferable technical scheme, the convex portion up convexes to form projection, second ring body inward
It is socketed on the lower end of projection;First ring body is socketed on the lower end of washer.
In the technical scheme of above-mentioned U-iron magnetic circuit system, the first ring body uses different attachment structures from the second ring body
It is socketed respectively with U iron convex portion, washer, can realizes that annexation of the short-circuited conducting sleeve in magnetic circuit system is set well, effectively
Harmonic distortion and the non-linear distortion of loudspeaker are reduced, improves the tonequality of loudspeaker.
Based on above-mentioned technical scheme, the technique effect that the present invention obtains is:
(1)In the magnetic circuit of loudspeaker provided by the invention with U-shaped short-circuited conducting sleeve, short-circuited conducting sleeve is fabricated to U-shaped structure, and lead to
Cross optimization short-circuited conducting sleeve and miscellaneous part such as washer, T iron(U iron)Annexation, effectively reduce loudspeaker harmonic distortion and
Non-linear distortion, the overall acoustical behavior of loudspeaker is improved, improve the tonequality of loudspeaker.
(2)The magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of the present invention, U-shaped short-circuited conducting sleeve include the first ring body and second
Ring body, using different attachment structures respectively and T iron(U iron), washer be socketed, make whole magnetic circuit system obtain stabilization, and
So that the change of nonlinear inductance amount reduces in magnetic circuit system, so that distortion reduces, and U-shaped short-circuited conducting sleeve can make the electricity of voice coil loudspeaker voice coil
Impedance value becomes to ease up with the rising of frequency, so as to improve the frequency response output area of loudspeaker.
Brief description of the drawings
Fig. 1 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 1.
Fig. 2 is the simulated effect figure of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 1.
Fig. 3 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 2.
Fig. 4 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 3.
Fig. 5 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 4.
Fig. 6 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 5.
Fig. 7 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 6.
Embodiment
For the ease of understanding the present invention, the present invention is more fully retouched below in conjunction with accompanying drawing and specific embodiment
State.The better embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, and
It is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is made in disclosure of the invention
Hold the more thorough and comprehensive understood.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Embodiment 1
Fig. 1 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 1, as shown in figure 1, a kind of tool
There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including T-shaped iron 1, magnet steel 2, washer 3, voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, T-shaped
Iron 1 includes transverse part 11 and is vertically set on the vertical part 12 of the overcentre of transverse part 11, in being sequentially arranged above for transverse part 11
Magnet steel 2 and washer 3, i.e. magnet steel 2 and washer 3 are sequentially located at the top of transverse part 11.It should be noted that the inner side edge ratio of washer 3
The inner side edge of magnet steel 2 is closer to vertical part 12.Space between magnet steel 2 and washer 3 and vertical part 12, then T iron clearance groove 13 is formed,
Voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5 are located in T iron clearance groove 13.
Wherein, the bottom of U-shaped short-circuited conducting sleeve 5 is located at the transverse part 11 of T-shaped iron 1 and the intersection of vertical part 12.U-shaped short-circuited conducting sleeve 5 and T
Shape iron 1 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and
In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, the first ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part 12 afterwards;
Second ring body 52 carries out downwards U-shaped bending in end, is socketed on the upper end of washer 3 afterwards.
Fig. 2 is the simulated effect figure of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of the present embodiment, as shown in Fig. 2 should
It is than short-circuited conducting sleeve traditionally and well many without the simulated effect of addition short-circuited conducting sleeve with the U-shaped short-circuited conducting sleeve of the present embodiment.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body
Structure, and the first ring body and the second ring body are socketed with vertical part and washer respectively, whole magnetic circuit system can be made to obtain stabilization, and make
The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U
Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model
Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 2
Fig. 3 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 2, as shown in figure 3, a kind of tool
There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including T-shaped iron 1, magnet steel 2, washer 3, voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, T-shaped
Iron 1 includes transverse part 11 and is vertically set on the vertical part 12 of the overcentre of transverse part 11, in being sequentially arranged above for transverse part 11
Magnet steel 2 and washer 3, i.e. magnet steel 2 and washer 3 are sequentially located at the top of transverse part 11.It should be noted that the inner side edge ratio of washer 3
The inner side edge of magnet steel 2 is closer to vertical part 12.Space between magnet steel 2 and washer 3 and vertical part 12, then T iron clearance groove 13 is formed,
Voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5 are located in T iron clearance groove 13.
Wherein, the bottom of U-shaped short-circuited conducting sleeve 5 is located at the transverse part 11 of T-shaped iron 1 and the intersection of vertical part 12.U-shaped short-circuited conducting sleeve 5 and T
Shape iron 1 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and
In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, the first ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part 12 afterwards;
Second ring body 52 is socketed on the lower end of washer 3.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body
Structure, and the first ring body and the second ring body are socketed with vertical part and washer respectively, whole magnetic circuit system can be made to obtain stabilization, and make
The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U
Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model
Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 3
Fig. 4 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 3, as shown in figure 3, a kind of tool
There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including T-shaped iron 1, magnet steel 2, washer 3, voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, T-shaped
Iron 1 includes transverse part 11 and is vertically set on the vertical part 12 of the overcentre of transverse part 11, in being sequentially arranged above for transverse part 11
Magnet steel 2 and washer 3, i.e. magnet steel 2 and washer 3 are sequentially located at the top of transverse part 11.It should be noted that the inner side edge ratio of washer 3
The inner side edge of magnet steel 2 is closer to vertical part 12.Space between magnet steel 2 and washer 3 and vertical part 12, then T iron clearance groove 13 is formed,
Voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5 are located in T iron clearance groove 13.
Wherein, the bottom of U-shaped short-circuited conducting sleeve 5 is located at the transverse part 11 of T-shaped iron 1 and the intersection of vertical part 12.U-shaped short-circuited conducting sleeve 5 and T
Shape iron 1 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and
In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, vertical part 12 up forms projection 14 laterally, and the first ring body 51 is socketed under projection 14
End;Second ring body 52 is socketed on the lower end of washer 3.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body
Structure, and the first ring body and the second ring body are socketed with vertical part and washer respectively, whole magnetic circuit system can be made to obtain stabilization, and make
The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U
Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model
Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 4
Fig. 5 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 4, as shown in figure 4, a kind of tool
There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including U-iron 6, magnet steel 2 ', washer 3 ', voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, U
Shape iron 6 includes bottom 61 and the convex portion 62 for upwardly extending out from bottom 61, and magnet steel 2 ' has been sequentially arranged above in bottom 61
With washer 3 ', i.e. magnet steel 2 ' and washer 3 ' is sequentially located at the top of bottom 61.It should be noted that the width of washer 3 ' is more than magnetic
The width of steel 2 ', the space between magnet steel 2 ' and washer 3 ' and convex portion 62, then form U iron clearance groove 63, voice coil loudspeaker voice coil 4 and U-shaped
Short-circuited conducting sleeve 5 is located in U iron clearance groove 63.
Wherein the bottom of U-shaped short-circuited conducting sleeve 5 is located at the bottom 61 of U-iron 6 and the intersection of convex portion 62, U-shaped short-circuited conducting sleeve 5 and U
Shape iron 6 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and
In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, the first ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of washer 3 ' afterwards;
Second ring body 52 carries out downwards U-shaped bending in end, is socketed on the upper end of convex portion 62 afterwards.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body
Structure, and the first ring body and the second ring body are socketed with washer and convex portion respectively, whole magnetic circuit system can be made to obtain stabilization, and make
The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U
Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model
Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 5
Fig. 6 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 5, as shown in figure 5, a kind of tool
There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including U-iron 6, magnet steel 2 ', washer 3 ', voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, U
Shape iron 6 includes bottom 61 and the convex portion 62 for upwardly extending out from bottom 61, and magnet steel 2 ' has been sequentially arranged above in bottom 61
With washer 3 ', i.e. magnet steel 2 ' and washer 3 ' is sequentially located at the top of bottom 61.It should be noted that the width of washer 3 ' is more than magnetic
The width of steel 2 ', the space between magnet steel 2 ' and washer 3 ' and convex portion 62, then form U iron clearance groove 63, voice coil loudspeaker voice coil 4 and U-shaped
Short-circuited conducting sleeve 5 is located in U iron clearance groove 63.
Wherein the bottom of U-shaped short-circuited conducting sleeve 5 is located at the bottom 61 of U-iron 6 and the intersection of convex portion 62, U-shaped short-circuited conducting sleeve 5 and U
Shape iron 6 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and
In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, convex portion 62 up convexes to form projection 64 inward, and the second ring body 52 is socketed on projection 64
Lower end;First ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of washer 3 ' afterwards.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body
Structure, and the first ring body and the second ring body are socketed with washer and convex portion respectively, whole magnetic circuit system can be made to obtain stabilization, and make
The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U
Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model
Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 6
Fig. 7 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 6, as shown in fig. 6, a kind of tool
There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including U-iron 6, magnet steel 2 ', washer 3 ', voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, U
Shape iron 6 includes bottom 61 and the convex portion 62 for upwardly extending out from bottom 61, and magnet steel 2 ' has been sequentially arranged above in bottom 61
With washer 3 ', i.e. magnet steel 2 ' and washer 3 ' is sequentially located at the top of bottom 61.It should be noted that the width of washer 3 ' is more than magnetic
The width of steel 2 ', the space between magnet steel 2 ' and washer 3 ' and convex portion 62, then form U iron clearance groove 63, voice coil loudspeaker voice coil 4 and U-shaped
Short-circuited conducting sleeve 5 is located in U iron clearance groove 63.
Wherein the bottom of U-shaped short-circuited conducting sleeve 5 is located at the bottom 61 of U-iron 6 and the intersection of convex portion 62, U-shaped short-circuited conducting sleeve 5 and U
Shape iron 6 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and
In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, convex portion 62 up convexes to form projection 64 inward, and the second ring body 52 is socketed on projection 64
Lower end;First ring body 51 is socketed on the lower end of washer 3 '.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body
Structure, and the first ring body and the second ring body are socketed with washer and convex portion respectively, whole magnetic circuit system can be made to obtain stabilization, and make
The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U
Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model
Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
The structure example and explanation of the above content only present invention, its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these obviously replace shape
Formula belongs to protection scope of the present invention.
Claims (10)
- A kind of 1. magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, it is characterised in that including T-shaped iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, the T-shaped iron include transverse part and are vertically set on the vertical part of the transverse part overcentre, the magnet steel and washer Positioned at the top of transverse part, the inner side edge of the washer than magnet steel inner side edge closer to vertical part;The magnet steel and washer and vertical part Between form T iron clearance groove, voice coil loudspeaker voice coil and the U-shaped short-circuited conducting sleeve is located in T iron clearance groove;The U-shaped short-circuited conducting sleeve includes the first ring Body and the second ring body, the voice coil loudspeaker voice coil are located in the U-lag that the first ring body is formed with the second ring body, and the voice coil loudspeaker voice coil can be in U-lag Move up and down;First ring body is socketed on vertical part, and second ring body is socketed on magnet steel or washer.
- 2. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that the U-shaped short circuit The bottom of ring is located at the transverse part of T-shaped iron and the intersection of vertical part.
- 3. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that first ring Body carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part afterwards;Second ring body carries out downwards U-shaped folding in end It is curved, the upper end of washer is socketed on afterwards.
- 4. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that first ring Body carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part afterwards;Second ring body is socketed on the lower end of washer.
- 5. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that the vertical part exists Top forms projection laterally, and first ring body is socketed on the lower end of projection;Second ring body is socketed on the lower end of washer.
- A kind of 6. magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, it is characterised in that including U-iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, the U-iron include bottom and the convex portion for extending upwardly from the bottom portion out, and the magnet steel and washer are located at bottom Top, the width of the washer is more than the width of magnet steel;U iron clearance grooves, institute are formed between the magnet steel and washer and convex portion State voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve is located in U iron clearance grooves;The U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body, and the voice coil loudspeaker voice coil is located at the U that the first ring body is formed with the second ring body In shape groove, the voice coil loudspeaker voice coil can move up and down in U-lag;First ring body is socketed on magnet steel or washer, second ring Body is socketed on convex portion.
- 7. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that the U-shaped short circuit The bottom of ring is located at the bottom of U-iron and the intersection of convex portion.
- 8. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that first ring Body carries out downwards U-shaped bending in end, is socketed on the upper end of washer afterwards;Second ring body carries out downwards U-shaped folding in end It is curved, the upper end of convex portion is socketed on afterwards.
- 9. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that the convex portion exists Top convexes to form projection inward, and second ring body is socketed on the lower end of projection;First ring body carries out downwards U in end Shape bending, the upper end of washer is socketed on afterwards.
- 10. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that the convex portion exists Top convexes to form projection inward, and second ring body is socketed on the lower end of projection;First ring body is socketed under washer End.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710857148.0A CN107509147B (en) | 2017-09-21 | 2017-09-21 | Loudspeaker magnetic circuit system with U-shaped short circuit ring |
US16/138,000 US10524056B2 (en) | 2017-09-21 | 2018-09-21 | Loudspeaker magnetic circuit system having U-shaped short-circuit ring |
DE102018123313.2A DE102018123313A1 (en) | 2017-09-21 | 2018-09-21 | Loudspeaker magnetic circuit system with U-shaped short-circuit ring |
GB1815376.7A GB2566827B (en) | 2017-09-21 | 2018-09-21 | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710857148.0A CN107509147B (en) | 2017-09-21 | 2017-09-21 | Loudspeaker magnetic circuit system with U-shaped short circuit ring |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107509147A true CN107509147A (en) | 2017-12-22 |
CN107509147B CN107509147B (en) | 2023-12-12 |
Family
ID=60698287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710857148.0A Active CN107509147B (en) | 2017-09-21 | 2017-09-21 | Loudspeaker magnetic circuit system with U-shaped short circuit ring |
Country Status (4)
Country | Link |
---|---|
US (1) | US10524056B2 (en) |
CN (1) | CN107509147B (en) |
DE (1) | DE102018123313A1 (en) |
GB (1) | GB2566827B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2566827A (en) * | 2017-09-21 | 2019-03-27 | Premium Loudspeakers Hui Zhou Co Ltd | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11601761B2 (en) | 2011-12-23 | 2023-03-07 | Shenzhen Shokz Co., Ltd. | Bone conduction speaker and compound vibration device thereof |
US11528562B2 (en) | 2011-12-23 | 2022-12-13 | Shenzhen Shokz Co., Ltd. | Bone conduction speaker and compound vibration device thereof |
US11570556B2 (en) | 2014-01-06 | 2023-01-31 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
US11582564B2 (en) | 2014-01-06 | 2023-02-14 | Shenzhen Shokz Co., Ltd. | Systems and methods for suppressing sound leakage |
BR112021021746A2 (en) | 2019-04-30 | 2021-12-28 | Shenzhen Voxtech Co Ltd | Acoustic output device |
CN112504365B (en) * | 2020-11-25 | 2022-05-20 | 合肥工业大学 | Magnetic circuit structure optimization design method of electromagnetic flow sensor |
Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH099392A (en) * | 1995-06-14 | 1997-01-10 | Foster Electric Co Ltd | Speaker |
JP2003199189A (en) * | 2001-12-26 | 2003-07-11 | Clarion Co Ltd | Speaker |
US20050190945A1 (en) * | 2004-02-26 | 2005-09-01 | Calderwood Richard C. | Shorting ring fixture for electromagnetic transducer |
US20070147652A1 (en) * | 2005-12-26 | 2007-06-28 | Pioneer Corporation | Speaker device |
US20070230737A1 (en) * | 2006-03-28 | 2007-10-04 | Hyde Ralph E | Extended multiple gap motors for electromagnetic transducers |
CN201594911U (en) * | 2009-10-26 | 2010-09-29 | 北京七九七华音电子有限责任公司 | Loudspeaker magnetic short circuit ring and loudspeaker |
US20130163806A1 (en) * | 2011-12-23 | 2013-06-27 | Aurasound, Inc. | Driver assembly for loudspeakers |
CN204014046U (en) * | 2014-07-02 | 2014-12-10 | 歌尔声学股份有限公司 | Loud speaker |
CN204231658U (en) * | 2014-10-30 | 2015-03-25 | 东莞成谦音响科技有限公司 | Short-circuited conducting sleeve and loud speaker |
CN105163253A (en) * | 2015-09-30 | 2015-12-16 | 苏州上声电子有限公司 | Magnetic circuit device for loudspeaker |
US20160037258A1 (en) * | 2014-08-01 | 2016-02-04 | Klipsch Group, Inc. | Phase Independent Surround Speaker |
WO2016150179A1 (en) * | 2015-03-23 | 2016-09-29 | 歌尔声学股份有限公司 | Loudspeaker |
CN205726355U (en) * | 2016-04-19 | 2016-11-23 | 歌尔丹拿音响有限公司 | Magnetic circuit system and speaker |
CN206024107U (en) * | 2016-09-08 | 2017-03-15 | 唐永均 | Axial magnetic circuit structure and the speaker containing this structure |
CN207124762U (en) * | 2017-09-21 | 2018-03-20 | 惠州超声音响有限公司 | A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK142299B (en) * | 1972-12-27 | 1980-10-06 | Ragnar Lian | Speaker. |
US4661973A (en) * | 1983-12-03 | 1987-04-28 | Pioneer Electronic Corporation | Minimization of distortion due to a voice coil displacement in a speaker unit |
CN202310081U (en) * | 2011-11-01 | 2012-07-04 | 北京七九七华音电子有限责任公司 | Voice coil and loudspeaker with same |
CN105050007A (en) * | 2015-08-27 | 2015-11-11 | 国光电器股份有限公司 | High-power thin type speaker |
CN107509147B (en) * | 2017-09-21 | 2023-12-12 | 惠州迪芬尼声学科技股份有限公司 | Loudspeaker magnetic circuit system with U-shaped short circuit ring |
CN207382558U (en) * | 2017-09-30 | 2018-05-18 | 陈新得 | A kind of tesla's magnetic group loud speaker |
CN107529115A (en) * | 2017-09-30 | 2017-12-29 | 陈新得 | A kind of tesla's magnetic group loudspeaker |
-
2017
- 2017-09-21 CN CN201710857148.0A patent/CN107509147B/en active Active
-
2018
- 2018-09-21 DE DE102018123313.2A patent/DE102018123313A1/en not_active Withdrawn
- 2018-09-21 US US16/138,000 patent/US10524056B2/en active Active
- 2018-09-21 GB GB1815376.7A patent/GB2566827B/en active Active
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH099392A (en) * | 1995-06-14 | 1997-01-10 | Foster Electric Co Ltd | Speaker |
JP2003199189A (en) * | 2001-12-26 | 2003-07-11 | Clarion Co Ltd | Speaker |
US20050190945A1 (en) * | 2004-02-26 | 2005-09-01 | Calderwood Richard C. | Shorting ring fixture for electromagnetic transducer |
US20070147652A1 (en) * | 2005-12-26 | 2007-06-28 | Pioneer Corporation | Speaker device |
US20070230737A1 (en) * | 2006-03-28 | 2007-10-04 | Hyde Ralph E | Extended multiple gap motors for electromagnetic transducers |
CN201594911U (en) * | 2009-10-26 | 2010-09-29 | 北京七九七华音电子有限责任公司 | Loudspeaker magnetic short circuit ring and loudspeaker |
US20130163806A1 (en) * | 2011-12-23 | 2013-06-27 | Aurasound, Inc. | Driver assembly for loudspeakers |
TW201334578A (en) * | 2011-12-23 | 2013-08-16 | Aurasound Inc | Improved driver assembly for loudspeakers |
CN204014046U (en) * | 2014-07-02 | 2014-12-10 | 歌尔声学股份有限公司 | Loud speaker |
US20160037258A1 (en) * | 2014-08-01 | 2016-02-04 | Klipsch Group, Inc. | Phase Independent Surround Speaker |
CN204231658U (en) * | 2014-10-30 | 2015-03-25 | 东莞成谦音响科技有限公司 | Short-circuited conducting sleeve and loud speaker |
WO2016150179A1 (en) * | 2015-03-23 | 2016-09-29 | 歌尔声学股份有限公司 | Loudspeaker |
CN105163253A (en) * | 2015-09-30 | 2015-12-16 | 苏州上声电子有限公司 | Magnetic circuit device for loudspeaker |
CN205726355U (en) * | 2016-04-19 | 2016-11-23 | 歌尔丹拿音响有限公司 | Magnetic circuit system and speaker |
CN206024107U (en) * | 2016-09-08 | 2017-03-15 | 唐永均 | Axial magnetic circuit structure and the speaker containing this structure |
CN207124762U (en) * | 2017-09-21 | 2018-03-20 | 惠州超声音响有限公司 | A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve |
Non-Patent Citations (3)
Title |
---|
KNUD THORBORG: "动圈式扬声器的半电感等效电路模型", 《电声技术》 * |
T. UDA, M. TANAKA: "Monitoring of static magnetic field and variable electromagnetic fields in a large magnetic fusion plasma experimental facility", 《2009 20TH INTERNATIONAL ZURICH SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY》 * |
吴迪: "电声换能器与扬声器打摩", 《科技视界》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2566827A (en) * | 2017-09-21 | 2019-03-27 | Premium Loudspeakers Hui Zhou Co Ltd | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
GB2566827B (en) * | 2017-09-21 | 2019-12-18 | Tymphany Acoustic Tech Huizhou Co Ltd | Loudspeaker magnetic circuit system having u-shaped short-circuit ring |
Also Published As
Publication number | Publication date |
---|---|
GB2566827A (en) | 2019-03-27 |
DE102018123313A1 (en) | 2019-03-21 |
GB201815376D0 (en) | 2018-11-07 |
CN107509147B (en) | 2023-12-12 |
US10524056B2 (en) | 2019-12-31 |
GB2566827B (en) | 2019-12-18 |
US20190090063A1 (en) | 2019-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107509147A (en) | A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve | |
CN101951181B (en) | Integrated magnetic double-end converter | |
CN207124762U (en) | A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve | |
KR20130049179A (en) | Solid wound core of amorphous alloy | |
CN205545918U (en) | Magnetic circuit and applied this magnetic circuit's speaker | |
CN207283806U (en) | Loudspeaker | |
CN103595330B (en) | Double-winding voice-coil motor thrust-compensating system | |
CN203912186U (en) | Single-diaphragm double-magnetic-circuit loudspeaker | |
CN209250875U (en) | A kind of magnetic returns structure and loudspeaker of loudspeaker | |
CN203120148U (en) | A loudspeaker | |
US8994305B2 (en) | Filtering reactor stage and variable-frequency driving system using the same | |
CN204859551U (en) | Low well tweeter of novel high -fidelity that transient response is sensitive | |
CN207234637U (en) | Tangential motor, tangential rotor and its rotor core | |
CN202310081U (en) | Voice coil and loudspeaker with same | |
CN110809223B (en) | Short circuit ring and loudspeaker | |
CN205847565U (en) | Speaker | |
CN104284282A (en) | Magnetic driving mechanism improving low-frequency performance and high-frequency performance of balanced armature unit | |
CN204090147U (en) | A kind ofly improve that dynamic iron unit is low, the magnetic driving mechanism of high frequency performance | |
CN204695931U (en) | The transformer core of packaging efficiency can be improved | |
CN206807772U (en) | A kind of voice coil loudspeaker voice coil moves iron loudspeaker | |
CN103260119B (en) | The thin speaker of low distortion | |
CN208158459U (en) | A kind of high efficiency full-bridge active clamp Mono-pole switch power amplifier | |
CN205622818U (en) | Speaker structure and earphone | |
CN102790935B (en) | The suppressing method of a kind of high frequency compression drivers and harmonic distortion thereof | |
CN206236521U (en) | High frequency transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 516223 Difeni Industrial Park, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Applicant after: Huizhou Difenni Acoustic Technology Co.,Ltd. Address before: 516223 Difeni Industrial Park, Xinlian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Applicant before: Huizhou Ultrasonic Sound Co.,Ltd. |
|
CB02 | Change of applicant information | ||
GR01 | Patent grant | ||
GR01 | Patent grant |